package com.day3.t1;

public class Main {
    public int maximalSquare(char[][] matrix) {
        int max=0;
        for (int i = 0; i < matrix.length; i++) {
            for (int j = 0; j < matrix[i].length; j++) {
                if(matrix[i][j]=='1'){

                }
            }
        }
        return max;
    }
}
